Introduction of freshwater fishes and decapod crustaceans in French Polynesia, a review.

The autochtonous or introduced freshwater fauna of French Polynesia was poorly known up to the end of the 20(th) century. The introduction of freshwater fishes and crustaceans began in 1920 with the introduction of the guppy and finally 11 species were introduced with more or less results. The Marquesas Archipelago is the only one without introduced species. The three others with perennial streams, the Society, Gambier and Australes Archipelagos, have one to three acclimatised species and one to three species present in aquaculture farm and which could be found soon in freshwater.